<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<div id="app">
    <input type="text" v-model="sendBody.sender">
    <input type="text" v-model="sendBody.subject">
    <input type="text" v-model="sendBody.sendText">
    <input type="file" @change="show(e)">
    <input type="submit" @click="send">

</div>

<script src="js/jquery.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script src="js/vue.min.js"></script>
<script src="js/axios.min.js"></script>
<script src="js/adminlte.min.js"></script>

<script>
let vue = new Vue({
    el:"#app",
    created(){
        axios.defaults.baseURL = "http://localhost:8080/"
    },
    data:{
        sendBody:{},
        file:""
    }
})


</script>

</body>
</html>